# SLO Burn Rate Monitoring UI

## Module
Web

## Status
VERIFIED

## Description
SLO health dashboard with multi-window burn rate calculation (1h/6h/24h/72h Google SRE methodology), alert lifecycle management (fire/ack/resolve/snooze), error budget forecasting, and SLO CRUD.

## Implementation Details
- **Feature directory**: `src/Web/StellaOps.Web/src/app/features/slo-monitoring/`
- **Routes**: `slo.routes.ts`
- **Components**:
  - `slo-alert-list` (`src/Web/StellaOps.Web/src/app/features/slo-monitoring/slo-alert-list.component.ts`)
  - `slo-dashboard` (`src/Web/StellaOps.Web/src/app/features/slo-monitoring/slo-dashboard.component.ts`)
  - `slo-definitions` (`src/Web/StellaOps.Web/src/app/features/slo-monitoring/slo-definitions.component.ts`)
  - `slo-detail` (`src/Web/StellaOps.Web/src/app/features/slo-monitoring/slo-detail.component.ts`)
- **Source**: SPRINT_20251229_031_FE_slo_burn_rate_monitoring

## E2E Test Plan
- **Setup**:
  - [ ] Log in with a user that has appropriate permissions
  - [ ] Navigate to `/ops/orchestrator/slo`
  - [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
- **Core verification**:
  - [ ] Verify the component renders correctly with sample data
  - [ ] Verify interactive elements respond to user input
  - [ ] Verify data is fetched and displayed from the correct API endpoints
- **Edge cases**:
  - [ ] Verify graceful handling when backend API is unavailable (error state)
  - [ ] Verify responsive layout at different viewport sizes
  - [ ] Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)

## Verification
- Verified on 2026-02-11 via `docs/qa/feature-checks/runs/web/slo-burn-rate-monitoring-ui/run-001/`.
- Tier 0 confirmed SLO route/component/client/model assets and key burn-rate/alert lifecycle symbols.
- Tier 1 passed focused Angular behavior regression (14 files / 64 tests) and `npm run build`.
- Tier 2 validated route coverage, client endpoint wiring for alert lifecycle and history windows, and dashboard/alert workflow behavior.